Apparently the Dell site added two extra letters (hz) that make this refresh rate confusing.

Samsung stopped using Hz as their measuring unit and now use CMR, which is their own invention in an attempt to confuse people. But if you notice Samsung never uses Hz along with CMR to describe their refresh rate.

Well, whoever put this page together probably didn't know that and combined the two measuring units, Hz and CMR, in one single line and now people got even more confused than what Samsung was hoping for.

For the rest of the world this is a 60Hz panel, but for Samsung this is a 120 CMR.

Can someone confirm that they have been successful at using the $75 promo cards(with $400 ecard purchase) and receive the $150 additional?

Yes it worked for me for the TV I bought.It would be wise to combine the $400.00 cards first. Be sure to let dell apply the $75.00 cards first.
I am not going to answer these questions any longer. I posted A link to A thread earlier that explains everything thoroughly.

Ordered thru online chat to combine the two gift cards 400 + 75.... just got the email that shipment is delayed til 4/12 on my 40' $529... it be nice to get the $150 card early and try to apply it to the order before it ships(dreaming)

This Thread is more than 700 days old. It is very likely that it does not need any further discussion and thus bumping it serves no purpose.If you still feel it is necessary to make a new reply you may do so.
I am aware that this Thread is rather old but I still want to make a reply.

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